How Big Is the Liberator?

Updated September 23, 2026

The Liberator Generation 2 Rocket Heater is a compact solid-fuel stove, but buyers must plan for more than the appliance footprint. The published dimensions associated with the current model are approximately 20 inches wide, 26 inches deep, and 36.5 inches tall. Confirm the current manufacturer documentation before designing the hearth or chimney because accessories and installation clearances affect the required space.

Stove Size vs. Installation Footprint

Those numbers describe the heater, not the complete installation. Add the required noncombustible floor protection, wall and ceiling clearances, stovepipe, chimney support, service access, fuel-loading space, and room for safe ash handling.

With or Without the Pellet Hopper

The active Liberator Generation 2 without a hopper can burn appropriate cordwood or pellets according to the manufacturer’s instructions. The active model with the pellet hopper adds the hopper assembly and changes the operating envelope. Use the dimensions and clearances for the exact configuration you order.

Questions to Resolve Before Buying

• Is the stove permitted in your jurisdiction and building type?
• What listing, certification, and installation manual apply to this exact model?
• What clearances are required with and without approved shielding?
• What hearth dimensions and thermal rating are required?
• What chimney class, diameter, height, and roof penetration are required?
• Who will obtain the permit and inspect the installation?
• Does your insurer have solid-fuel-appliance requirements?

Do Not Design From Product Dimensions Alone

A wood or pellet appliance needs a properly designed venting system. A short appliance can still require substantial ceiling clearance and a chimney extending through or above the roof. Mobile homes, workshops, cabins, and tiny houses may have additional restrictions. Never improvise a flue or reduce clearances without documented approval.

Plan the Room Layout

Allow a clear path for loading fuel and removing ash. Keep wood, pellets, furniture, curtains, rugs, and other combustibles outside the required clearances. Install smoke and carbon-monoxide alarms and maintain suitable fire extinguishing equipment.

Bottom Line

The Liberator itself is roughly 20 by 26 by 36.5 inches, but the safe installation area is considerably larger. Obtain the current manual, local approval, and a professional chimney plan before choosing its final location.